Intraspecific variation in the essential oils from Drimys brasiliensis leaves and stem barks |
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Authors: | Lago João Henrique G Carvalho Larissa Anastácio C Ferreira Marcelo J P Romoff Paulete Zanin João Luiz B Soares Marisi G Fávero Oriana A |
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Institution: | Instituto de Ciências Ambientais, Químicas e Farmacêuticas, Universidade Federal de S?o Paulo, 09972-270, Diadema, SP, Brazil. joao.lago@unifesp.br |
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Abstract: | The essential oils from leaves and stem barks of Drimys brasiliensis Miers (Winteraceae), collected in July and December 2008, were analyzed by GC/FID and GC/MS. The stem bark oils were composed mainly of monoterpenes (July, 45 +/- 3%; December, 92 +/- 4%), while the oils from leaves showed the predominance of sesquiterpenes (July, 47 +/- 1%; December, 55 +/- 1%). The variation in the relative amount of constituents could be associated, at least in part, to several microclimatic parameters such as precipitation, temperature and/or phenological state, which were different for each collection of D. brasiliensis. |
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